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Best, Netherlands

Harmen D Voogd

Average Co-Inventor Count = 4.00

ph-index = 1

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 42

Harmen D VoogdNorman D Richards (1 patent)Harmen D VoogdJozef M Timmermans (1 patent)Harmen D VoogdJos G Schepers (1 patent)Harmen D VoogdHarmen D Voogd (1 patent)Norman D RichardsNorman D Richards (10 patents)Jozef M TimmermansJozef M Timmermans (8 patents)Jos G SchepersJos G Schepers (4 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. U.S. Philips Corporation (1 from 14,087 patents)


1 patent:

1. 5301172 - Method of storing user information items and apparatus for reproducing

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12/19/2025
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